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Labor Day Putting down your wrenches or time for
MORE wrenching? 
Plenty of places to share. | | Click on image for the lowdown. 
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Mod | | | Forums66 Topics128,009 Posts1,055,293 Members48,419 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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| | | | Joined: May 2005 Posts: 1,624 Shop Shark | | Shop Shark Joined: May 2005 Posts: 1,624 | I have an engine in desperate need of a rebore. The manual states the piston compression height is 1.805”. Compression ratio is around 8.5:1. In searching various web sites for oversized pistons, I find flat top pistons have compression height of around 1.775”. Are the piston manufacturers assuming one is going to mill the heads and block to bring the compression ratio back to 8.5:1?
Thanks.
Six volt guy living in a twelve volt world
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